A flexible, hardened material created for the added stability, rust prevention and safety for all users of propane cylinders, tanks, canisters or the like. The composition of device can vary in flexibility, hardness, color, composition, shape or size. The molding/forming of the device can include but is not limited to injection molding, rotational molding, blow molding, compression molding, transfer molding, silicone molding and vacuum thermoforming. The device can be formed from a composition which may include, but is not limited to, rubber, thermoplastics, polymers, and synthetics of various durometer. The device can be non-electrostatic and can protect against ambient ground electrostatic charges.
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1. A cover for a tank comprising:
a top portion for attachment to the tank,
the tank having a foot ring,
the foot ring having an inside surface and an outside surface,
the foot ring extending from a bottom portion of the tank and
operable to support the tank on a surface,
the cover preventing the foot ring of the tank from contacting the surface; and
a slit in the top portion of the cover,
the slit having an open top and first and second opposing concentric sides extending from the open top,
the slit sandwiching at least a portion of the foot ring of the tank where the first side slit of the silt is disposed adjacent the inside surface and the second side of the slit is disposed adjacent the outside surface when the foot ring is disposed in the slit, wherein
the top portion extending from an inside wall to an outside wall of the cover,
the top portion defining at a planar upwardly facing top surface,
the entirety of the upwardly facing top surface defining a first plane parallel with a second plane of a bottom surface of the cover.
17. A cover for a base of a propane cylinder comprising:
a hoop base having an inner circular perimeter and an outer circular perimeter, the hoop base having a base surface and an upper surface opposite the base surface, the inner circular perimeter and the outer circular perimeter extending concentrically from the base surface to the upper surface;
an inner upstand extending upwardly from the upper surface of the hoop base defining an inner upstand inner wall and an inner upstand outer wall, and defining an inner thickness; and
an outer upstand extending upwardly from the upper surface of the hoop base defining an outer upstand inner wall and an outer upstand outer wall, and defining an outer thickness, wherein
the inner upstand and the outer upstand terminate to define a planar inner upwardly facing top surface and a planar outward upwardly facing top surface, wherein a first plane is defined by at least one of (1) an entirety of an inner upwardly facing top surface of the inner upstand, between the inner upstand inner wall and the inner upstand outer wall, and (2) an entirety of an outward upwardly facing top surface, between an outer upstand inner wall and an outer upstand outer wall is parallel to the base surface; and
the outer upstand inner wall and the inner upstand outer wall face each other, are concentric and are spaced apart from each other so as to define a slot therebetween, with a base of the slot defined by the upper surface of the hoop base, the slot defining a minimum width and a depth.
2. The cover of
6. The cover of
7. The cover of
9. The cover of
10. The cover of
11. A method of using the cover of
disposing the top portion of the cover on at least a portion of the foot ring of the propane tank; and
receiving the foot ring of the propane tank in the slit formed in the top portion of the cover.
12. The method of
15. The method of
16. The method of
18. The cover of
19. The cover of
20. The cover of
21. The cover of
22. The cover of
23. The cover of
24. The cover of
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This application claims the benefit of priority of U.S. provisional patent application No. 62/158,342, filed May 7, 2015, the contents of which are herein incorporated by reference.
The present invention relates to various methods and devices for adding stability, rust prevention, comfort and safety to the bottom of a propane cylinder, where the devices provide a non-static, non-electrical conductive ground contact. The device can fit on the base of the propane cylinder by covering the base of the cylinder partially or completely. A portion of the device can also fit on the top of a propane cylinder for better comfort and stability when transporting the cylinder.
Propane cylinders often tip over, leave rust on any material they sit on and can be dangerous to any person or object upon which the cylinder is in contact. Many propane cylinders, such as typical and frequently used barbeque propane cylinders, are also heavy and awkward to carry because of a thin piece of material that serves as a handle which is rigid, thin and has a small surface area to grab.
Propane tank sizes vary along with the materials they are made out of. All propane cylinders have a base they sit on that is made from similar materials as the tank. The base of the container often has a small diameter (making it unstable), blunt (making it dangerous) and when made out of various forms of metal, can rust. When the tank rusts, it can leave a rust stain on any material it contacts. The top of a propane tank usually has handles that are rigid and thin, making the tank awkward and uncomfortable to handle.
As can be seen, there is a need for an improvement that can be retrofitted to existing propane cylinders, or formed integrally with new propane cylinders, that overcomes the aforesaid mentioned issues with conventional propane cylinders.
The present invention provides composition and functionality for the addition of stability, comfort, rust prevention and safety for propane cylinders/tanks/canisters. The device can, for example, fit on the base of the propane cylinder by covering the base of the cylinder partially or completely.
An embodiment of the present invention provides a cover for a tank comprising a top portion for attachment to the tank, the top portion covering at least a portion of a bottom portion of the tank and preventing the bottom portion of the tank from contacting a surface upon which the tank rests.
Another embodiment of the present invention provides a method of stabilizing a tank on a surface comprising disposing a top portion of a cover on at least a portion of a bottom portion of the tank.
These and other features, aspects and advantages of the present invention will become better understood with reference to the following drawings, description and claims.
The following detailed description is of the best currently contemplated modes of carrying out exemplary embodiments of the invention. The description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention, since the scope of the invention is best defined by the appended claims.
Broadly, an embodiment of the present invention provides a flexible, hardened material created for the added stability, rust prevention and safety for all users of propane cylinders, tanks, canisters or the like. The composition of device, according to aspects of the present invention, can vary in flexibility, hardness, color, composition, shape or size. The molding/forming of the device can include but is not limited to injection molding, rotational molding, blow molding, compression molding, transfer molding, silicone molding and vacuum thermoforming. The device can be formed from a composition which may include, but is not limited to, rubber, thermoplastics, polymers, and synthetics of various durometer. The device can be non-electrostatic and can protect against ambient ground electrostatic charges.
As used herein, the terms, “Cylinder”, “Propane”, “Tank(s)”, and “Canister(s)” are used interchangeably herein to refer to any container designed for gas or liquid storage. The term “Cover” is used to refer to any object that can completely or partially cover the base or top of a tank designed for the storage of gas, liquid, liquefied gas, or the like.
Referring now to
When fitting about a portion thereof, in some embodiments, the cover 10 may fit symmetrically about the base portion so that, when the tank rests on a surface, the tank may be stable and not angled. In some embodiments as shown in
In some embodiments, the cover 10 may have a slit 12 cut into one side thereof. The slit 12 may be designed to receive a base portion of the propane tank. In some embodiments, the base portion of the propane tank can frictionally fit into the slit 12, thereby securing the cover 10 to the base portion of the propane tank. In some embodiments, the slit 12 may include ridges or other protrusions (not shown) to help provide a secure fit between the cover 10 and the propane tank. In some embodiments, one or more concentric slits 12 may be disposed on one side of the cover 10. This may be especially useful when slight variations may occur in the diameter of the base portion of a various propane tanks. In other embodiments, a slit of one diameter may be disposed in one side of the cover, while a slit of a different diameter may be disposed in an opposite side thereof, provided that one slit does not provide fluid communication with the other slit. In other words, as shown in
The slit 12 may fit into the foot ring 32 of the propane tank 30 (see
In some embodiments, the cover may fit on a top portion of the propane tank. While the Figures show specific sizes for the cover 10 and the slit 12, the dimensions of the cover of the present invention may vary to fit propane tanks of various sizes. The slit 12 typically extends from about 10% to about 90% of the depth of the cover 10. One or more vents 38 may be disposed to communicate an inside of the slit 12 to an exterior of the cover 10. The vents 38 may be disposed to communicate with an exterior side of the cover 10, as shown, or may be disposed to communicate with a bottom or inside portion of the cover 10.
The cover 10 may have a width from about ½ inch to about 4 inches, for example, where the width of the cover 10 may be the dimension facing the surface upon which the propane tank is placed. The width may provide a wider resting place for the tank, thus providing improved stability and increases surface area contact with the ground.
Referring to
One or more internal stabilizers 18 may be attached to an interior perimeter of the cover and may be substantially planar with the bottom surface 14 of the cover 10. The internal stabilizers 18 may attach to the cover 10 by various methods, such as friction fit, snap fit, bolt on, or the like. The internal stabilizers 18 may extend entirely across the inside of the cover 10, as shown in
One or more, typically two or more strap loops 20 may be disposed on the cover. The strap loops 20 may allow a strap to pass therethrough to tie down the cover (and the propane tank inserted therein). The strap loops 20 may be useful, for example, in a bed of a pickup truck. The strap loops 20 may also be used to secure the propane tank to the cover 10 by passing a strap through the strap loops 20 and over the tank.
By removing the propane tank 30 from the ground (or other surface, such as a patio or the like), rusting of the base portion of the tank 30 may be minimized and, should rust form on the base portion 32 (also referred to as the foot ring 32), the rust is not transferred to the surface.
The cover may be formed in various shapes. While the Figures show a round cover, the cover may be formed in other shapes to match the base or top portions of the propane tank. The cover may also be formed of various materials. In one embodiment, the cover may be formed from a material having a hardness of 60A, for example. Regardless of material, in typical embodiments, the cover can be made from a non-electrostatic, non-electrical conductive ground contact. The cover may optionally include one or more grounding components. For example, one or more ground wires may be disposed to contact the tank disposed in the cover. The ground wire(s) may be used to contact a grounding surface, a metal grill, or the like. In some embodiments, a piece of metal 36 may be disposed in all or a portion of the slit 12 so that the foot ring 32 contacts the metal when the tank is disposed therein.
It should be understood, of course, that the foregoing relates to exemplary embodiments of the invention and that modifications may be made without departing from the spirit and scope of the invention as set forth in the following claims.
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